{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "469799038",
    "entityType": "User",
    "nonce": "0x6a4a05c7be41fcf4722d8d632cecf4505c57ea4adb25c42b72b08f83c42cc269",
    "signature": "0x7109fc3d4d2f0723db4bacc2992eb6a0378011764a88bf60fbec30211ac8310c4593799c8b67099854a034d7619a6ae537b97af43e1c5f202a90bb981dc30ee71c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}